Vertical Roller Mill

Vertical Roller Mill machine, which is developed and launched by Joyal, sets medium crushing, drying, grinding, classifying and other functions as a whole, being the ideal equipment in the grinding industry.

Features

1. Composite separator improves the efficiency of the powder.
2. With the function of automatic lifting and falling , can realize no-load starting.
3. Welded type arc plate is used for sealing, it features simple structure, reliable performance, well-sealed structure.
4. By means of the roller swing-out device, the grinding rollers can be turned out of the mill, which is in favor of maintenance.
5. The limit mechanism avoids the fiction and crash of metals between grinding roller and grinding plate, increasing the rotating stability and security.
6. Operating pressure of hydraulic system is low, can reduce the leakage failure and the mill vibration , is good for operation and management.
7. The centralized circulating oil lubrication is applied to the grinding roller bearings, which ensures the bearing operate at constant temperature and with pure oil, so that longer service life is achieved.

Working Principle

Material through the feed tube fell on the center of grinding plate, centrifugal force generated from the rotation of grinding plate uniformly scatters and flattens the materials outwards the surrounding area of grinding plate, to forms a certain thick layer of materials bed, the material was crushed by number of rollers at the same time. Driven by the continuous centrifugal force to keep the materials moving to the outer edge of the grinding plate, the materials off the grinding plate rising with the hot air which enter from wind ring into the mill, through the mill shell into the middle of the separator, in this course materials and hot gas do a fully heat exchange, and the water quickly evaporates. Separator controls the output size of finished product, greater than the specified size are separated and fall back to the plate, while meet the fineness requirements are brought through the separator into the finished product warehouse.

Technical data

Main Specifications of GRMR Raw Materials Vertical Mill

Model

Diameter of Millstone (mm)

Mean Diameter of
Grinding Roller
(mm)

Grinding Roller No.

Standard Installed
Power
(kw)

Capacity
(t/h)

GRMR22.30

2200

1400

3

550

70

GRMR26.30

2600

1600

3

790

100

GRMR28.30

2800

1750

3

900

115

GRMR30.30

3000

1700

3

1000

120

GRMR32.40

3200

1500

4

1400

160

GRMR34.40

3400

1500

4

1600

180

GRMR36.41

3600

1600

4

1800

200

GRMR38.41

3800

1700

4

1900

230

GRMR40.41

4000

1800

4

2240

260

GRMR43.41

4300

1900

4

2500

310

GRMR46.41

4600

2060

4

3150

350

GRMR48.41

4800

2240

4

3350

390

GRMR50.41

5000

2360

4

3500

420

GRMR53.41

5300

2500

4

3800

470

GRMR56.41

5600

2600

4

4500

540

GRMG59.61

5900

2600

6

5000

610

GRMR63.61

6300

2700

6

6000

720

Remarks :( Selection Standard of Mill)
1. The medium grindability of raw materials (MF) =0.9~1.0;
2. The maximum moisture content of raw materials 7%;
3. End Product Fineness 80μm R12~15%;
4. The moisture content of finished products: 0.5~1.0%;
5. The specific installed power and technology parameters can be properly adjusted according to the properties of actual materials and the requirements of business owner;
6. The above specifications are also suitable for the limestone grinding, and the specific model is determined by the materials features.

Main Specifications of GRMK Cement Vertical Roller Mill

Model

Diameter of Millstone
(mm)

Medium Diameter

of Roller
(mm)

Roller Quantity

Standard Installed Power
(kw)

Capacity
(t/h)

GRMK30.31

3000

1600

3

1250

55-60

GRMK32.31

3200

1700

3

1600

65-80

GRMK35.41

3500

1800

4

1800

85-100

GRMK40.41

4000

1900

4

2500

115-125

GRMK43.41

4300

2120

4

3000

135-145

GRMK46.41

4600

2240

4

3350

150-160

GRMK48.41

4800

2240

4

3550

170-180

GRMK50.41

5000

2360

4

3900

190-200

GRMK53.41

5300

2500

4

4600

210-250

GRMK56.61

5600

2500

6

5300

235-250

Remarks：(Mill Selection Standard)
1.Cement standard：PC42.5 Specific surface area：3300-3800cm2/g；
2. Confirm the compounding ingredient at the time of model selection；choose the lower limit if the raw material is hard to grind ；
3. Can choose two roller mode as per condition of user.